Solder Joints:
- Most of the solder joints are located at the cart connector as to be seen
on the silkscreen.
- The mode output located at the PCBs bottom right side is goin' to the
- S-CPUN Pin 111
- S-PPU1 Pin 24 and S-PPU2 Pin 30
- One may use the additional pad for the add-on PCB for the 1Chip-SNES or to use separate wires to S-PPU1 and S-PPU2
- CIC8 and CIC10 has to be solder to the pads, not the the lifted pins
- Reset input can be solder directly to the reset buttons output instead of CIC8
- ‘Contr. Port’ means the connector for the flat wire. In the SNES-mini the mapping is as follows:
- 10 -> Player1 Pin3
- 8 -> Player1 Pin2
- 6 -> Player1 Pin4

Active ICs (SOIC14 packages if not otherwise stated):
7404: six inverter gates, where three are unused
74HC(T)125: four buffer gate: use HC or HCT type!
74133: 13-NAND gate, SOIC16 package

S-CIC: PIC16F630 flashed with ‘Firmware_SCIC.hex’
uIGR (V2): PIC16F684 flashed with ‘Firmware_uIGR_V2.hex’
Both firmwares can be found at https://github.com/borti4938/SNES-AddOn-PCBs/tree/master/Firmware-Switchless-PICs
!!!Note that the ‘snes-igr.hex’ in the sd2snes github repository, i.e., the ‘classical igr’ won’t work
on this PCB!!!